Dragon Quest -Dai no Dai-bouken- by Sanjou Riku & Inada Kouji. 22/22 bunko volumes.
First volume is tankoubon-sized, second is a compilation of tanko 2. and bunko 2. These are the original files by Square_Ocean. Uploading this because the 45th episode of anime has been released and it's the end of canon.
Enjoy this true Epic in its entirety!